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Step 5 Preview
Grok 3 Preview
Grok 3 Preview is a proprietary model from xAI. It ranks #104 of 351 on the LMArena text leaderboard with a rating of 1426.
LMArena text1426
Rank#104/351
95% interval1421–1430
Votes32.5K
- Developer
- xAI
- Released
- Oct 20, 2026
- Context window
- —
- Price in / out, per 1M tokens
- —
- Weights
- Proprietary
- Inputs
- —
- Reasoning
- —
- Tool use
- —
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| LiveCodeBenchCoding | 52.90% | 115 / 143 | $3 / $15 | |
| MedQAMedicine | 83.85% | 61 / 92 | $3 / $15 | |
| GPQA DiamondReasoning | 74.24% | 87 / 138 | $3 / $15 | |
| MMLU-ProReasoning | 79.95% | 93 / 138 | $3 / $15 | |
| AIMEReasoning | 58.75% | 58 / 96 | $3 / $15 |
Vals AI, as of Oct 24, 2026.
LMArena, by category
| Leaderboard | Rating | Rank | Votes |
|---|---|---|---|
| TextLMArena | 1426 | 104 / 351 | 32.5K |
| CodingLMArena | 1432 | 135 / 346 | 5.4K |
| MathLMArena | 1391 | 177 / 339 | 2.7K |
| Creative writingLMArena | 1414 | 76 / 349 | 4.7K |
| Instruction followingLMArena | 1409 | 108 / 351 | 9.6K |
| Hard promptsLMArena | 1433 | 105 / 351 | 10.6K |
| Multi-turnLMArena | 1424 | 111 / 349 | 4.6K |
| Long queriesLMArena | 1439 | 79 / 330 | 4.9K |
| ExpertLMArena | 1421 | 135 / 305 | 1.6K |
| Legal and governmentIndustries | 1445 | 77 / 325 | 1.9K |
| Medicine and healthcareIndustries | 1469 | 39 / 325 | 1.6K |
| Business and financeIndustries | 1410 | 123 / 344 | 3.9K |
| ChineseLanguages | 1448 | 128 / 328 | 2K |
| SpanishLanguages | 1417 | 121 / 249 | 376 |
| GermanLanguages | 1431 | 82 / 261 | 786 |
| FrenchLanguages | 1462 | 61 / 252 | 393 |
| JapaneseLanguages | 1387 | 93 / 236 | 835 |
LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.
Compare Grok 3 Preview
xAI
The lab behind Grok, trained on one of the largest compute clusters and integrated with X. Founded 2023, based in San Francisco Bay Area. x.ai
Questions
Who makes Grok 3 Preview?
Grok 3 Preview is made by xAI, founded 2023 and based in San Francisco Bay Area.
How does Grok 3 Preview rank?
#104 of 351 on LMArena’s text leaderboard, rated 1426 (95% interval 1421–1430) from 32,498 votes, as of Oct 22, 2026.
Is Grok 3 Preview open source?
No. Grok 3 Preview is proprietary and served through its provider’s API.